20102672

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{479}}^1$

素因数の和:591

約数の個数: 40

約数和(自身を含む): 40592640

約数和(自身を除く): 20489968

約数列:

[1, 2, 4, 8, 16, 43, 61, 86, 122, 172, 244, 344, 479, 488, 688, 958, 976, 1916, 2623, 3832, 5246, 7664, 10492, 20597, 20984, 29219, 41194, 41968, 58438, 82388, 116876, 164776, 233752, 329552, 467504, 1256417, 2512834, 5025668, 10051336, 20102672]

約数ペア:

[(1, 20102672), (2, 10051336), (4, 5025668), (8, 2512834), (16, 1256417), (43, 467504), (61, 329552), (86, 233752), (122, 164776), (172, 116876), (244, 82388), (344, 58438), (479, 41968), (488, 41194), (688, 29219), (958, 20984), (976, 20597), (1916, 10492), (2623, 7664), (3832, 5246)]